Nortel BCM200 Installation And Maintenance Manual page 352

352 Appendix G GATM wiring chart
Table 92 GATM4 RJ-21 connector wiring (Sheet 2 of 2)
Line Pin Connection
Aux 50 Tip
25 Ring
Note: The Aux port supports full data speeds. When the line
is in use by an analog device, the icon is lit on the phone to
indicate it is in use. If you try to seize the line using the
phone, the display shows "in use." Also, in the event of a
power failure, an analog set on line 1 goes active (powered
by the CO).
Table 93 lists the wiring details for the RJ-21 connector on the GATM8.
Table 93 GATM8 RJ-21 connector wiring (Sheet 1 of 2)
Line Pin Connection
1 26 Tip
1 Ring
2 27 Tip
2 Ring
— 28 No connection
3 No connection
— 29 No connection
4 No connection
3 30 Tip
5 Ring
4 31 Tip
6 Ring
— 32 No connection
7 No connection
— 33 No connection
8 No connection
5 34 Tip
9 Ring
6 35 Tip
10 Ring
— 36 No connection
11 No connection
— 37 No connection
12 No connection
7 38 Tip
13 Ring
N0060612 N0060612
Wire color
Violet-Slate
Slate-Violet
Wire color
White-Blue
Blue-White
White-Orange
Orange-White
White-Green
Green-White
White-Brown
Brown-White
White-Slate
Slate-White
Red-Blue
Blue-Red
Red-Orange
Orange-Red
Red-Green
Green-Red
Red-Brown
Brown-Red
Red-Slate
Slate-Red
Black-Blue
Blue-Black
Black-Orange
Orange-Black
Black-Green
Green-Black